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30051108 = 2233674153
BaseRepresentation
bin111001010100…
…0101100100100
32002112202101000
41302220230210
530143113413
62552033300
7513300363
oct162505444
962482330
1030051108
1115a6592a
12a092830
1362c2329
143dc37da
152989073
hex1ca8b24

30051108 has 48 divisors (see below), whose sum is σ = 79092160. Its totient is φ = 9865152.

The previous prime is 30051097. The next prime is 30051113. The reversal of 30051108 is 80115003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5160 + ... + 9312.

Almost surely, 230051108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30051108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39546080).

30051108 is an abundant number, since it is smaller than the sum of its proper divisors (49041052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30051108 is a wasteful number, since it uses less digits than its factorization.

30051108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233 (or 4225 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 30051108 is about 5481.8890904505. The cubic root of 30051108 is about 310.8995998670.

The spelling of 30051108 in words is "thirty million, fifty-one thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 67 108 134 201 268 402 603 804 1206 1809 2412 3618 4153 7236 8306 12459 16612 24918 37377 49836 74754 112131 149508 224262 278251 448524 556502 834753 1113004 1669506 2504259 3339012 5008518 7512777 10017036 15025554 30051108